One of our regular contributors, Phil Hall, looks at the success of the recently-introduced plastic bag charge in England, and asks if there are lessons for the completion of the UK’s stalled metric changeover. Likes(7)Dislikes(7)

This is a question that often arises during discussions on the merits of the metric system. Martin Vlietstra, one of our regular readers, provides some thoughts on the matter, coincidentally on 10 October. Likes(7)Dislikes(12)